Huge pipe-pushing machine imported for Thames work
Thames Water alliance eight2O has used a giant pipe-pushing machine to reinforce Victorian pipework in Surrey - the first time such a machine has been used in England.
The pipe-pusher, capable of producing a staggering 100 tonnes of thrust, has been commissioned from Dutch company Gebr. van Leeuwen Boringen BV, and is being used as part of a £5.5M scheme to re-line cast iron trunk mains near Raynes Park, New Malden.
The beast of a machine will help reduce the risk of interruptions to water supplies for the 82,000 Thames Water customers who are connected to the pipes, and also reduce the risk of emergency road works.
Secured in a large trench, it uses its massive thrusting power to push new trunk main pipes through the century-old Victorian ones.
“Modern techniques allow us to slide the new plastic pipes inside the old ones,” says project manager Ben Connis, from Thames Water alliance eight2O. “This reduces the need to excavate large trenches and, as a result, improves safety while reducing cost.”
The scheme requires two cast iron trunk mains to be re-lined between Raynes Park recreation ground and a pedestrian footpath, known as ‘The Cut’, opposite New Malden railway station – a distance of around 1,700m each.
Connis added: “For this project we also carefully planned where we would excavate to keep disruption to The Cut and Coombe Road to a minimum while we rehabilitated these mains that pre-date the reign of Queen Victoria.”
The machine drives 12 metre lengths of 710mm PE SDR11 – high density polyethylene pipes – inside the old Victorian mains from Raynes Park to the rear of the railway station, a distance of 1,200m, with the remaining 500m being slip-lined through The Cut.
The pipe pushing machine is so efficient that it can push a 12m length quicker than the time needed to fusion weld the next length onto the run. The machine is now returning to Holland but is highly likely to return for Phase 2 of the project, which is in the planning stages.
- Thames Water discovers 'fatberg' in Kingston Thames Water has removed a "bus-sized lump" of fat mixed with wet wipes that had formed in drains under a road... Read More >
- Join the debate on London's water Members of the public and the media have been invited to attend a meeting to discuss how London's water is being managed.... Read More >
- Untreated sewage discharge costs Thames Water nearly £170K A jammed penstock gate and failed bypass that blocked a sewer has cost Thames Water £169,045 for polluting the River Crane... Read More >
- Getting to Grips with... Ice Pigging An innovative method of cleaning pipes, ice pigging is now being seen as a viable option for wastewater as well as clean... Read More >
- Getting to Grips with... Carbon Footprinting Working out the carbon footprint of a project such as a drainage installation involves a number of variables, with... Read More >
- A mother and daughter team In this Q&A, WWT meets Lesley Barratt of Clancy Docwra, who won the Ladies category of the Institute of Water's... Read More >
- Expert View: Care against corrosion Leaks caused by pipe corrosion are often preventable with a little extra care and training when the pipes are originally... Read More >
- Digging Deeper: Blocking leaden dangers With the dangers of lead in water highlighted recently by the case of the US city of Flint in Michigan, pipe expert Nick... Read More >
- Market Operations delivery manager What are we looking for?• Innovative, challenging and dynamic leader and team player. • Experience of working in a utility network... Read more here.
- General Manager Asset Management Essential Energy Location: Port Macquarie, New South Wales, Australia Salary: Competitive Essential Energy is one of Australia’s largest... Read more here.
- Energy Growth Strategy Analyst National Grid’s energy network transports electricity to homes and businesses all over the UK. It’s an essential part of all our lives.... Read more here.